The workshop aims to engage people in an ongoing initiative to characterize and harmonize nutrient inventories and budgets across North America, with four main objectives:

- To “meet and greet” those working with nutrient inventories and fluxes

- To engage in a project to compile papers/methodologies, coefficient tables, and datasets to characterize regional mass balances across all of North America

- To consider critical issues, such as: accessibility of primary data sources, spatial & temporal variation of key variables, uncertainty assessment/ error propagation, regional sensitivity of mass balances to key variables, stoichiometric constraints, interactions with hydrological and climatic variables,  implications of policy choices (e.g. effects of biofuel policies and ag practices on nutrient fluxes), & effective communication of outcomes

- To discuss the development of data repositories, further targeted workshops, etc., possibly including the development of papers or special issues of journals.

Lead Organizer: Dennis Swaney, Cornell University (dps1@cornell.edu)